baber/WOPTO huggingface dataset:
Patent GB-872014-A (GB)
Title: Improvements in or relating to apparatus for sorting timber
IPC: B07C5/14
Filed: 1958-11-19
Abstract: 872,014. Sorting timber. AITKEN, R. L Feb. 9, 1960 [Nov. 19, 1958], No. 37233/58. Class 117 Apparatus in which planks are sorted according to length includes a conveyer 1 on which the planks are carried breadthwise and from which they are laterally ejected at a number of stations 4 spaced lengthwise of the conveyer. A series of inclined trays 11, one over the other, is located adjacent the conveyer, and each tray receives those planks, of predetermined length, which are ejected at an associated station. Each tray has a releasable stop at its bottom end for the release of the accumulated planks. The method of removing the planks from the conveyer may be substantially that described in Sepecification 828,002, shown in Fig. 3, in which at each station planks of predetermined length are caught by a ramp 5, removed by rollers 6, 7 and guided by an angle member 8. The conveyer chains slope upwardly, and each inclined tray has two roller tracks 10 down which the planks slide to a releasable stop 14 secured to members 15 pivoted at 16 to the tray frame. The members 15 are rocked to withdraw the stop by a hydraulic ram 17. acting on a cranked lever 18. Withdrawal of the stop is accompanied by upward movement of clamping blocks 20 which clamp a plank against a stop 21, so that when the stop 14 is released those planks between the stop 14 and blocks 20 are released. The longest planks are received in the bottom tray and the length of the planks received in successive trays is smaller. A conveyer may be arranged under the feet of all the trays to carry the planks to a stacking machine which may be of the type described in Specification 829,039.
Patent GB-1125301-A (GB)
Title: Liquid sample dispensing device
IPC: C12M1/26
Filed: 1965-08-31
Abstract: 1,125,301. Liquid sample dispensing device. SCIENTIFIC INDUSTRIES, Inc. 31 Aug., 1965 [31 Aug., 1964], No. 37252/65. Heading B1X. The contents of capillary tubes 83 are dispensed in sequence on to travelling laminated tape 21-23 using a device comprising movable support 79 for holding the capillary tubes horizontally, a clamp means having jaws 86, 87 for individually engaging each capillary tube in turn, and pivot means for swinging the capillary while horizontal to a position in which one end is over the tape, then tilting the capillary (by operation of hinge 90) to a vertical position for discharging its contents. Support plate 28 for the tape has in it a recess 30 beneath the point of discharge.
Patent GB-900850-A (GB)
Title: Improvements in electronic counting arrangements
Inventor: WASHTELL COLIN CHARLES HENRY
IPC: G01T1/18
Filed: 1957-11-29
Abstract: 900,850. Registering output of machines. LABGEAR Ltd. Feb. 27, 1959 [Nov. 29, 1957 (2)], Nos. 37277/57 and 37279/57. Class 106 (4). [Also in Groups XL (a) and XL (b)] In a system for comparing a quantity with a reference quantity, the quantity to be measured is represented by a series of pulses which are registered on a counter giving a visual indication of the count. Means are provided for producing the reference quantity, and on attaining this quantity the counter is stopped and the reference quantity and the count compared. The counter operates indicating devices if the count is outside limits set in relation to the reference quantity. In one embodiment the output of a detector 3, Fig. 1, which receives radiation from radioactive samples 1 passes to a counter 4 which is set in operation by unit 5 for a period corresponding to the time in which a standard sample is known to give a certain count, this count being a reference count. The count is indicated on counter 4 and if it differs from the reference count by more than a certain limit the indicator 7 or 8 is operated. The indicators may be visual or aural. In a second embodiment a standard sample actuates a second counter, Fig. 2 (not shown), while the first counter monitors the sub-standard sample. The second counter, after attaining a certain count, closes a gate between the detector and the first counter. For monitoring radio-activity at several points, the system of Fig. 3 is used. The time during which each channel is monitored is selected by a selector 32, and counters 20, 21 register the count detected by unit 27 in the appropriate location, the channel being chosen by unit 35. The reference counter 34 operates gate circuits 26 in the manner described for the second embodiment above. Should the count recorded in a channel be outside set limits a warning indicator 24 is operated and a printer 22 prints information relevant to that channel. Indicators 23 or 25 operate if the difference between the channel and the reference counts becomes excessive. A further counter may be used to monitor the channel continuously if any of the indicators 23, 24, 25 is operated. The system of Fig. 3 may be used for sampling gas drawn from the neighbourhood of fuel elements in a nuclear reactor and may initiate automatic shut-down in the event of fault.
Patent GB-989860-A (GB)
Title: Improvements in a.m.-f.m. receivers of the transistor type
IPC: H03G3/30
Filed: 1962-10-02
Abstract: 989,860. Transistor radio receivers. RADIO CORPORATION OF AMERICA. Oct. 2,1962 [Oct. 18, 1961], No. 37398/62. Headings H3Q and H3T. A transistor A.M./F.M. receiver is provided with an R.F. stage on F.M. only, A.G.C. being applied to this R.F. stage to avoid the risk of overloading the frequency changer. The R.F. stage 14 is in common emitter connection, signals being applied to its base from F.M. aerial 10 via broadly tuned circuit 16 and taken from its collector via variably tuned circuit 18. This is coupled to the emitter of frequency changer stage 22 which is backcoupled to be self-oscillating and operates in common base connection for these frequencies. For A.M. a rod type aerial is used, comprising winding 32 tuned by capacitor 33 and a coupling winding which is connected to the base of the transistor 22 which operates in common emitter mode on this band. Ganged switches 30a, 30b respectively earth the output of the R.F. stage, via capacitor 31, on A.M. and change over the oscillator circuits on the two bands. The two intermediate frequencies are passed by series-connected I.F. circuits 28, 38 respectively to I.F. amplifier 40 the output of which also comprises series connected I.F. circuits 42, 44 respectively, feeding second I.F. stage 50. This feeds F.M. discriminator circuit 52 and ratio detector 56, and also A.M. tuned I.F. circuit 54 which feeds into diode A.M. detector 64. The outputs of the A.M. and F.M. detector circuits are combined in volume control 60. According to the invention there is included in series with the primary of discriminator 52 and tuned A.M. circuit 54 an impedance, as shown a resistance 72, across which a voltage is developed at F.M. intermediate frequency: this is rectified by diode 64 and applied over smoothing circuit 80, 82 to the base of I.F. stage 40 as A.G.C. An amplified A.G.C. voltage is obtained from a resistor 83 in the emitter circuit of transistor 40 and this is applied via smoothing circuit 84, 86 to the base of the R.F. stage 14. The A.G.C. is delayed in consequence of the bias applied to diode 64 over potentiometer 60 and resistors 80, 87, until limiting occurs in the second I.F. amplifier 50.
Patent GB-1446685-A (GB)
Title: Cheese mills
IPC: A01J27/04
Filed: 1974-08-27
Abstract: 1446685 Cheese mill TANCO ENG CO Ltd 27 Aug 1974 [29 Aug 1973] 37473/74 Heading A4C A cheese mill comprises a hopper 30 which delivers cheese blocks into a box 19 between, with the box moved to the left from the position illustrated, a fixed platen block 27 and a knife matrix 26, so that as the box is moved to the right the cheese is chipped and delivered into the box to the left of the matrix and allowed to fall from the box on to a conveyer or into a container. The box is reciprocally driven by a shaft 15 from a motor 11  via a worm gear 12, an eccentrically mounted arm 13 and a channel 14 fixed to the shaft which 'retains the free end of the arm. The shaft is guided in bearings 16, 17 and the box mounted by bearings on a row of shafts which guide its movement. Platen block 27 is mounted on arms 28, 29.
Patent GB-1474375-A (GB)
Title: Electrical connection sockets
IPC: H01R12/81
Filed: 1973-08-08
Abstract: 1474375 Two part couplings CARR FASTENER CO Ltd 7 Aug 1974 [8 Aug 1973] 37511/73 Heading H2E An electrical socket 23 comprises a body of plastics electrically insulating material, integrally formed with gripping parts 26, 27 for gripping parts of a flexible circuit 18 which is folded over a tongue 11, the socket sliding over the tongue and circuit and having resilient electrical contact members (30, Fig. 4 not shown) received in contact housing 29 which contact the respective bare conducting paths of the circuit 18. A resilient catch member 28, which comprises a locking member 40 at the end of an arm 39, engages behind a catch member (15 Fig. 1 not shown) on the tongue 11. One end of the socket is relieved at 38 to cooperate with the ribs (17, Fig. 1 not shown) on the tongue. The tongue may have spikes for penetrating the flexible circuit, or location lugs (13, 14 Fig. 1 not shown) which engages apertures (21, 22 Fig. 2 not shown) in the flexible circuit.
Patent GB-777984-A (GB)
Title: Method for assuring the adhesion of polyethylene coatings to surfaces
IPC: B05D1/10
Filed: 1954-12-29
Abstract: Metals are coated with a resin of the polyvinyl acetal group (e.g. polyvinyl formal or butyral), and a film of polyethylene is applied thereover.  Both coatings may be applied by flame-spraying, the resin undercoating being preferably sprayed at such a temperature that it melts only partially, to give a rough coating.  Prior sand-blasting of the metal surface is not required, except for the removal of rust or scale.  Specification 593,313 is referred to.
Patent GB-369210-A (GB)
Title: Improvements in or relating to the socket members of electrical plug-and-socket couplings
IPC: H01R13/18
Filed: 1930-12-13
Abstract: 369,210. Plug couplings. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield, and HARRISON, B. G., Ambleside, Birmingham Road, Walsall. Dec. 13, 1930, No. 37618. [Class 38 (i).] A resilient socket contact is constructed by boring a transverse hole b in a block a, splitting one side of the hole b in the direction of the axis of the block, and applying a spring ring e in a groove f around the split end of the block. Expansion of the socket is limited by a rigid ring g. Alternatively a single ring may be employed which allows resilient expansion up to a point at which further movement is checked as by mutual engagement of hooked ends formed on a split ring.
Patent GB-1273207-A (GB)
Title: Anti-skid control system
IPC: B60T8/1763
Filed: 1969-07-28
Abstract: 1,273,207. Antiskid brake systems. TELDIX G.m.b.H. 28 July, 1969 [27 July, 1968], No. 37699/69. Heading F2F. In an antiskid vehicle brake system of the kind with an electronic signal former, supplied with a voltage proportional to the rotational speed of a braked wheel, which produces the signals to open and shut an electromagnetically operated valve in the brake pressure circuit and which consists of an RC series connection acting as a high-pass filter and a following threshold switch, a plurality of such signal formers which are fed by the same voltage proportional to the speed of rotation and the signals of which differ from one another as a result of different filter characteristics and/or threshold values and which control an inlet valve E and an outlet valve A are provided. A voltage U v  proportional to the braked wheel speed is fed to filter circuits F x , F y , F z  which lead to threshold switches or amplifiers V x , V y , V z . The output signal from amplifier V z  is inverted in an inverter 2 and is then supplied together with the otuput signal from amplifier V x  to an AND element 3 which then actuates inlet valve E through a power amplifier 4 so that the inlet valve which is closed when the winding is not energized is only opened as long as the signal from amplifier V x  is present alone. The output signals from V x  and V y  control the normally closed outlet valve A through an AND element 5 and power amplifier 6. Modified circuits are also described.
Patent GB-1152446-A (GB)
Title: Thermo Copying Material
IPC: B41M5/32
Filed: 1966-08-23
Abstract: 1,152,446. Thermographic materials. MITSUBISHI PAPER MILLS Ltd. Aug.23, 1966 [Aug. 30, 1965], No.37809/66. Heading G2C. A heat-sensitive material comprises (a) a heterocyclic hydrazine derivative of formula wherein R is hydrogen, alkyl, aryl, substituted aryl or heterocyclic and Z completes a five- or six-membered heterocyclic ring to which a benzene ring may be fused and (b) a ferric or ferrous salt of an organic acid with 7 to 26 carbon atoms. A guanidine maybe added as an accelerator. In the examples, the two components with binders are suspended in non-solvents and ground, the two suspensions are mixed and coated on a support and imagewise exposed to infrared radiation or by using a heated stylus thus producing a coloured image. A pigment such as zinc oxide may be added to the heat-sensitive layer.
Patent GB-981760-A (GB)
Title: Electrostatic recording head
IPC: H04N1/29
Filed: 1962-10-05
Abstract: 981, 760. Electrostatic recording heads and records. OMNITRONICS Inc. Oct. 5, 1962 [Oct. 16, 1961], No. 37844/62. Heading G5R. A multitrack head comprises pairs of tungsten pins 11, 12, spaced by a thin quartz layer 15 in the direction of the track, the pairs being spaced, Fig. 4, transversely to the direction of movement of a tape 23, each pin 12 being individually returned to earth via a current-limiting resistor 22 and the pins 11 being connected to a negative current-pulse source 21. The record tape has a paper support 25 made conductive by carbon inclusions and a high-resistivity surface layer 24 of polyethylene or vinyl plastic. A discharge 26 between a pair of pins 11,12 produces negative ions and the p.d. in the load resistor leaves both pins at a negative potential, which repels the ions towards the surface 24, the support layer being earthed by its machine supporting guide (not detailed). The charges on the tape may be made visible by dusting with suitable materials for visual or machine read-out.
Patent GB-1311064-A (GB)
Title: Production of sulphur trioxide
IPC: C01B17/77
Filed: 1970-08-06
Abstract: 1311064 Sulphur trioxide BADISCHE ANILIN- & SODA-FABRIK AG 6 Aug 1970 [7 Aug 1969] 37923/70 Heading C1A Sulphur trioxide produced by reacting SO 2  and/or S and O 2  or n oxygen containing gas in a bed of catalyst fluidized by means of the O 2  or O 2 -containing gas while removing the heat produced in the reaction by indirect cooling of the catalyst bed whereby the temperature at the gas inlet of the bed is 480‹ to 650‹ C. and the temperature at the gas outlet is 350‹ to 420‹ C. Preferably cooling pipes providing 20-40% of the total cooling surface are located in the central third of the bed and cooling pipes providing 80-60% of the total cooling surface are located in the upper third of the bed. Known vanadium catalysts, preferably of particle size from 0À1 to 3 mm. may be included in the bed.
Patent GB-1432285-A (GB)
Title: Polyimide filament and process for its manufacture
IPC: B01D39/16
Filed: 1974-08-30
Abstract: 1432285 Copolyimide filaments UPJOHN CO 30 Aug 1974 [12 Oct 1973] 38049/74 Addition to 1354926 Heading B5B [Also in Division C3] A filament comprises a copolyimide having the recurring unit where in 10 to 30% of the units R is and in the remainder R is The preparation of such polymers is described in Specification 1,354,926 and solutions thereof in polar solvents in Specification 1,354,927. The filaments may be prepared by spinning a solution of the polymer into a coagulant bath, passing the filament through at least one aqueous bath, and removing most of the volatile materials by passing it over at least one heated roller while drawing it, e.g. at 100‹ to 220‹ C., with a draw ratio of 1 x to 3 x . The filament may then be oriented, e.g. by drawing it over a surface heated at 325‹ to 400‹ C. to a draw ratio up to 5 x and subsequently tempered. Numerous suitable solvents, coagulants and surfactants are specified and the spinning procedure is exemplified in detail. The effect of choice of coagulant or cross-section is described, the use of glycerine or a glycol giving a "pseudo hollow" structure, Fig. 3, leading to advantageous high bulk properties.
Patent GB-811534-A (GB)
Title: An induced draft boiler
IPC: F24H1/28
Filed: 1956-12-13
Abstract: 811,534. Induced draft furnaces. CLEAVERBROOKS CO. Dec. 13, 1956 [Jan. 20, 1956], No. 38066/56. Class 51(1). [Also in Group XIII] In a boiler having a fire tube and associated multiple gas flues within a water-filled shell, draft is induced by a fan disposed in a chamber in the shell. A motor-driven fan 28, Fig. 1, mounted on a readily detachable boiler head plate 14, is located in an annular-shaped chamber 30, Fig. 2, within a shell 10 and adjacent a chamber into which pass combustion gases after their passage from a fire tube 13 through flues 18. In expelling the gas through an outlet 36, combustion air, for a liquid or gas fuel burner 16, is drawn by the face into the tube 13 round a shield 15.
Patent GB-964422-A (GB)
Title: Improvements in and relating to pit prop setting means
IPC: E21D15/58
Filed: 1960-11-07
Abstract: 964,422. Telescopic pit props. K. GERLACH, and H. GERLACH. Nov. 7, 1960 [Nov. 7, 1959], No. 38188/60. Heading E1E. A prop setting mechanism comprises a bow 7 which is slotted to receive an adjustable pivoted positioning lever 2 and carries opposed abutments 8, 9 adapted to be urged together by a wedge 10. The abutments may be made of or coated at 11 with a high strength copper alloy, the members 7, 8 being welded together or releasably interconnected by screws. The abutment 9 has flanges 12, 12<SP>1</SP> for slidably supporting it on the bow, a journal 13 welded between the flanges 12<SP>1</SP> co-operating with a hook 14 of the bow to limit the displacement of the member 9. A screw 16 screw threaded into the member 14 limits pivotal movement of the member 9 and prevents its loss-a securing plate 17 being also provided for the wedge. In a modification, Fig. 3 (not shown), the abutment 9 is provided with a guide engaging grooves in the wedge and the arm of the bow on the wedge entering side is controlled by two pivoted parts, the wedge being additionally provided with a screw threaded stop.
Patent GB-350988-A (GB)
Title: Improvements in devices for completely vaporising benzine and obtaining a perfectly homogeneous combustible mixture for internal combustion engine plants
IPC: F02M1/00
Filed: 1929-12-13
Abstract: 350,988. Internal-combustion engines. PASQUALI, T., 22, Via Conservatorio, Milan, Italy. Dec. 13, 1929, No. 38312. Convention date, Dec. 13, 1928. Void [Published under Sect. 91 of the Acts]. [Class 7 (ii).] Mixing charge.-A grid-like construction comprising groups of thin metal plates intersecting at right-angles and spaced closely together is fitted in the induction pipe, or in a sleeve inserted in the pipe, to facilitate atomization. At each end of a group of long plates a, Fig. 7, slots b are provided into which are fitted groups of comparatively short plates c, Fig. 8, having corresponding slots d. The centre plates of each group are longer than the others, the projecting portions g, f, Fig. 1, fitting into slots formed in the casing of the device. The plates may be heated directly or indirectly by means not disclosed.
Patent GB-1504247-A (GB)
Title: Apparatus for neutralising static charge on sheets or web
IPC: G03G15/02
Filed: 1976-09-16
Abstract: 1504247 Discharging static electricity from webs INTERNATIONAL BUSINESS MACHINES CORP 16 Sept 1976 [6 Oct 1975] 38426/76 Heading H1X An apparatus for neutralizing static electric charge on a web 40 (or sheet) includes a pair of electrodes 34, 36 positioned above and along a path of the web moved by rollers 42, 46; 44, 48 (or an endless belt), the electrodes which are connected to a common A.C. supply being spaced such with respect to one another and the frequency of the supply that a point on the web passes under the electrodes to attract ions of opposite polarity.
Patent GB-1384858-A (GB)
Title: Production of alpha-chloroacrylic acid
IPC: C07C51/377
Filed: 1973-08-16
Abstract: 1384858 α-Chloroacrylic acid KNAPSACK AG 16 Aug 1973 [18 Aug 1972] 38735/73 Heading C2C α-Chloroacrylic acid is prepared by contacting acrylic acid with Cl 2  gas to give a crude reaction product consisting predominantly of 2,3-dichloropropionic acid and introducing said crude product into a catalyst zone at 80 to 160‹ C. containing one or more known dehydrochlorination catalysts and continually distilling off α- chloroacrylic acid under a pressure of 10 to. 100 mm. Hg. The acrylic acid and chlorine gas are preferably contacted at 15 to 60‹ C. in the presence of, as catalyst, 0À1 to 5% by weight based on the acid of pyridine, dimethyl formamide or Cu(II) salts. A polymerization inhibitor is advantageously present at 0À05 to 1% by weight in the dehydrochlorination stage, e.g. hydroquinone, phenothiazine or Cu(II) chloride. It is also preferable to distil the acid from the catalyst zone in a column packed with copper fillers.
Patent GB-1483356-A (GB)
Title: Cryogenic refrigerator
IPC: F02G1/044
Filed: 1974-09-06
Abstract: 1483356 Refrigerating PHILIPS GLOEILAMPENFABRIEKEN NV 6 Sept 1974 [11 Sept 1973] 39061/74 Heading F4H In a cryogenic refrigerator having a displacer 2 and piston 3 arranged to reciprocate with a phase difference and defining a compression space 6 and expansion space 8, a cooling unit 7 and a main regenerator 11 incorporated in a duct 10 and containing for example, lead balls; an auxiliary regenerator is connected in parallel with the main regenerator 11 and is formed by the annular gap between the displacer 2 and the cylinder 1a. The walls 2b of the displacer and the cylinder wall la are of stainless steel. The working medium is preferably helium. The hydraulic diameter d h  of the annular gap satisfies the relation: where s=stroke length of the displacer 2; #= mean dynamic viscosity of the working medium flowing through the gap during operation of the refrigerator; L = length of the gap in the axial direction; #=mean density of the working medium flowing through the gap during operation of the refrigerator; ##=mean pressure drop through the main regenerator 11.
Patent GB-1274459-A (GB)
Title: Potassium pyrophosphate peroxyhydrates and method of preparing the same
IPC: C01B15/16
Filed: 1969-08-05
Abstract: 1,274,459. Potassium pyrophosphate peroxyhydrates. STAUFFER CHEMICAL CO. 5 Aug., 1969 [21 Aug., 1968], No. 39065/69. Heading C1A. Potassium pyrophosphate peroxyhydrates, containing at least 30% w/w, bound hydrogen peroxide are claimed per se and are prepared by forming a saturated solution of potassium pyrophosphate in H 2 O 2  solution of at least 50% w/w concentration, and crystallizing out the product. Alternatively the saturated solution can be prepared by dissolving a large amount of potassium pyrophosphate in a weak H 2 O 2  solution and concentrating, by evaporation or by addition of concentrated (90%) H 2 O 2 . In the examples K 4 P 2 O 7 .7H 2 O 2  is prepared.
Patent GB-945553-A (GB)
Title: Improvements in or relating to high frequency parametric amplifiers
IPC: H01J25/49
Filed: 1960-11-15
Abstract: 945,553. Space charge wave tubes. WESTERN ELECTRIC CO. Inc. - Nov. 15, 1960 [Nov. 23, 1959], No. 39191/60. Heading H1D. A parametric amplifier has a pump comprising an electrostatic field which is spatially alternating in the longitudinal direction. The pump comprises quadrupoles spaced onequarter cycle (referred to the electron beam) apart and are spaced by annular or rod insulators 38, Figs. 1, 8. In Fig. 8 the quadrupoles have extensions 61 to take leads and supports 63 with insulating spacers 38. A ferromagnetic shield 39 reduces the magnetic field due to output cavity resonators 25, 66, each have two solenoid 23 in the pump space. Input and ridges. Specification 832,172 is referred to.